Lithophone from unchanged natural stones. Stones collected for many years separated from thousands. Also played by scraping. Gives long tones like an organ. Character of tone have many variations. Like a bell, a wooden plank, squeak from a frog, a racing car. The stones have been singing for themselves for millions of years. Played themes: experimental modern, classical folksongs, jazz, afrorhytms. Constructed and played by Mårten Bondestam from Finland. Video also made by himself.